The difference between oriented silicon steel and non-oriented silicon steel

Different properties

        Grain-oriented silicon steel: Grain-oriented silicon steel, also known as cold-rolled transformer steel, is an important ferrosilicon alloy used in the transformer (core) manufacturing industry.
Non-oriented silicon steel: Non-oriented silicon steel is a ferrosilicon alloy with very low carbon content. Its grains are randomly oriented in the deformed and annealed steel plate.

Different characteristics

        Grain-oriented silicon steel: The magnetism of grain-oriented silicon steel has strong directionality, with the lowest iron loss value in the rolling direction, the highest magnetic permeability and high magnetic induction value under a certain magnetizing field. The silicon content of oriented silicon steel is about 3%, and the steel is required to have low oxide inclusion content and must contain some kind of inhibitor (MnS, A1N).
Non-oriented silicon steel: Non-oriented silicon steel is a ferrosilicon alloy containing 0.8%-4.8% silicon. It is hot and cold rolled into silicon steel sheets with a thickness of less than 1mm. Adding silicon can increase the resistivity and maximum magnetic permeability of iron, and reduce coercive force, core loss (iron loss) and magnetic aging. Different production processes

       Grain-oriented silicon steel: Grain-oriented silicon steel is smelted in an oxygen converter. The billet undergoes hot rolling, normalization, cold rolling, intermediate annealing and secondary cold rolling to the finished thickness, and then undergoes decarburization annealing and high-temperature annealing, and is finally coated with an insulating layer.
Non-oriented silicon steel: pre-desulfurization of molten iron, secondary desulfurization by adding Ca0+CaF: flux or rare earth elements and calcium during converter blowing. The boiling molten steel is decarburized by vacuum treatment and then further desulfurized. Ferrosilicon with low titanium and zirconium content is selected for alloying. Grain-non-oriented and grain-oriented steel strips

       Grain-non-oriented cold-rolled strip is usually used as the core of motors or welding transformers; grain-oriented cold-rolled strip is used as the core of power transformers, pulse transformers, magnetic amplifiers, etc. Cold-rolled oriented thin silicon steel strip is made from 0.30 or 0.35mm thick oriented silicon steel strip, which is then pickled, cold rolled and annealed.
        The cold-rolled non-oriented silicon steel sheet is made by hot-rolling the billet or continuous casting billet into a coil with a thickness of about 2.3mm. Cold-rolled electrical steel strip has the characteristics of smooth surface, uniform thickness, high stacking coefficient, and good punching performance. It has higher magnetic induction and lower iron loss than hot-rolled electrical steel strip.
        Using cold strip instead of hot-rolled strip to manufacture motors or transformers can reduce the weight and volume by 0%-25%. If cold-rolled oriented strip is used, the performance will be better. Using it instead of hot-rolled strip or low-grade cold-rolled strip can reduce the power consumption of the transformer by 45%-50%, and the transformer performance will be more reliable.